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Published by nick on 26 Oct 2007 at 12:36 am

Installing Trac with subversion on Cent OS 5

25 Comments software, technology

25 Responses to “Installing Trac with subversion on Cent OS 5”

1. Daniel Skinner on 14 Dec 2007 at 12:38 pm #

   The guide is working well for me so far. I have a problem with trac-admin however.

   When running initenv it asks for the ‘Templates directory’. The default value is a windows path and I have no idea what it should be for CentOS. Any ideas?

2. nick on 14 Dec 2007 at 1:45 pm #

   Daniel,

   Happy to help.

   You are running this line:

   trac-admin $pathtoyourtracproject initenv

   Are you running it literally? You are supposed to replace $pathtoyourproject with an empty directory that you create for where want to store your trac data.

   I didn’t make that clear in the docs, I’ll update.

3. Daniel Skinner on 14 Dec 2007 at 4:35 pm #

   It was clear enough to me, I did it right. It seemed like all the environment variables were Windows-like.

   I think this is because I tried Trac’s easy_install method first and it messed it up.

   I have started from a fresh CentOS install and am about to install svn/trac using your guide. I will keep you updated.

4. Daniel Skinner on 14 Dec 2007 at 4:52 pm #

   Nick,

   I got it working. Thanks for the help and the awesome guide, it was exactly what I was looking for.

   Here is what I did (for anyone else):

   - Fresh install of CentOS 5 (running as a virtual machine).

   - Followed the CentOS 5 Perfect Setup Guide.

   - yum install subversion

   - Created a subversion repository with svnadmin create

   - Followed this guide word for word (except for the Apache configuration, I needed a different solution).

   - I also used parts of CentOS, Subversion How-To (setting up Apache and SVN) and Trac on Fedora Guide (setting up Apache and Trac).

   I don’t think following the ‘Perfect Setup Guide’ is required at all - it’s just what I did.

   Thanks

5. Daniel Skinner on 14 Dec 2007 at 5:53 pm #

   I spoke to soon. This might be outside the focus of your guide but I’m stuck at the moment. I have set up Trac with apache and when I try to view Trac in a web browser I get the following:

   Traceback (most recent call last):
File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 406, in dispatch_request
dispatcher.dispatch(req)
File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 206, in dispatch
req.hdf = HDFWrapper(loadpaths=chrome.get_all_templates_dirs())
File "/usr/lib/python2.4/site-packages/trac/web/clearsilver.py", line 135, in __init__
raise TracError, "ClearSilver not installed (%s)" % e
TracError: ClearSilver not installed (No module named neo_cgi)

   Any ideas?

6. Daniel Skinner on 14 Dec 2007 at 5:58 pm #

   Ok, again I was too hasty with the comment button!

   Here is what I did to fix it:

   
wget http://dag.wieers.com/rpm/packages/clearsilver/clearsilver-0.10.4-1.el5.rf.i386.rpm
rpm -i clearsilver-0.10.4-1.el5.rf.i386.rpm
wget http://dag.wieers.com/rpm/packages/clearsilver/python-clearsilver-0.10.4-1.el5.rf.i386.rpm
rpm -i clearsilver-0.10.4-1.el5.rf.i386.rpm


7. Setup Subversion and Trac on CentOS 5 | Daniel Skinner: News and Articles on Web Development on 06 Jan 2008 at 10:19 am #

   […] Install Trac: Follow Nick’s guide with the alternative Clearsilver installation below. Skip the Apache Configuration […]

8. sushmi on 18 Jan 2008 at 4:31 am #

   I installed trac with subversion+apache. During the execution of “trac-admin” for database string i gave “mysql://root:a@localhost:3306/trac”
   since i used mysql database but during environment creation the following error occured.

   Please enter location of Trac page templates.
   Default is the location of the site-wide templates installed with Trac.

   Templates directory [/usr/local/share/trac/templates]>

   Creating and Initializing Project
   Failed to create environment. No module named MySQLdb
   Traceback (most recent call last):
   File “/usr/local/lib/python2.4/site-packages/trac/scripts/admin.py”, line 613, in do_initenv
   options=options)
   File “/usr/local/lib/python2.4/site-packages/trac/env.py”, line 145, in __init__
   self.create(options)
   File “/usr/local/lib/python2.4/site-packages/trac/env.py”, line 250, in create
   DatabaseManager(self).init_db()
   File “/usr/local/lib/python2.4/site-packages/trac/db/api.py”, line 70, in init_db
   connector.init_db(**args)
   File “/usr/local/lib/python2.4/site-packages/trac/db/mysql_backend.py”, line 44, in init_db
   cnx = self.get_connection(path, user, password, host, port, params)
   File “/usr/local/lib/python2.4/site-packages/trac/db/mysql_backend.py”, line 40, in get_connection
   return MySQLConnection(path, user, password, host, port, params)
   File “/usr/local/lib/python2.4/site-packages/trac/db/mysql_backend.py”, line 132, in __init__
   import MySQLdb
   ImportError: No module named MySQLdb
   Failed to initialize environment. 1
   Traceback (most recent call last):
   File “/usr/local/lib/python2.4/site-packages/trac/scripts/admin.py”, line 617, in do_initenv
   sys.exit(1)
   SystemExit: 1
   =================

   Any idea, please help me out!

   Sushmi

9. nick on 18 Jan 2008 at 11:30 am #

   Based on the error message, it looks like you may have skipped this step:

   3. Install MySQL-python so that python can interact with mysql.
   Download and untar MySQL-python from http://sourceforge.net/projects/mysql-python
   
cd $mysqlpythonsourcedir
python setup.py build && python setup.py install


10. Daniel Schiavone on 21 Jan 2008 at 2:28 pm #

    After installation I’m getting the following errors…

    [Mon Jan 21 16:18:08 2008] [error] [client 66.93.119.89] PythonHandler trac.web.mod: Traceback (most recent call last):
    [Mon Jan 21 16:18:08 2008] [error] [client 66.93.119.89] PythonHandler trac.web.mod: File “/usr/lib64/python2.4/site-packages/mod_python/apache.py”, line 287, in HandlerDispatch\n log=debug)
    [Mon Jan 21 16:18:08 2008] [error] [client 66.93.119.89] PythonHandler trac.web.mod: File “/usr/lib64/python2.4/site-packages/mod_python/apache.py”, line 461, in import_module\n f, p, d = imp.find_module(parts[i], path)
    [Mon Jan 21 16:18:08 2008] [error] [client 66.93.119.89] PythonHandler trac.web.mod: ImportError: No module named mod

    My httpd.conf reads…

    SetHandler mod_python
    # added the following line
    PythonInterpreter main_interpreter
    PythonHandler trac.web.mod python_frontend
    PythonOption TracEnv /var/www/trac/project1
    PythonOption TracUriRoot /trac/

11. Daniel Schiavone on 21 Jan 2008 at 2:31 pm #

    Looks like the space in PythonHandler trac.web.mod python_frontend was screwing it up. I removed it and now getting…

    Traceback (most recent call last):
    File “/usr/lib/python2.4/site-packages/trac/web/main.py”, line 406, in dispatch_request
    dispatcher.dispatch(req)
    File “/usr/lib/python2.4/site-packages/trac/web/main.py”, line 206, in dispatch
    req.hdf = HDFWrapper(loadpaths=chrome.get_all_templates_dirs())
    File “/usr/lib/python2.4/site-packages/trac/web/clearsilver.py”, line 135, in __init__
    raise TracError, “ClearSilver not installed (%s)” % e
    TracError: ClearSilver not installed (No module named neo_cgi)

    Which someone solved above I believe.

12. nick on 21 Jan 2008 at 3:12 pm #

    Daniel Schiavone: Based on the error message, it looks like Clearsilver is not installed. You may have skipped this step:

    3. Install Clearsilver, a templating package that trac depends on.
    1. Download and untar clearsilver from http://www.clearsilver.net/downloads/
    2. Compile
    cd $clearsilversourcedir; ./configure && make && make install

    -Nick

13. gabe on 24 Jan 2008 at 1:26 pm #

    Thanks for the guide… 2 small issues I ran into, I needed to install python-devel before installing MySQL-python, and I needed to recompile my MySQL installation with the option: –enable-thread-safe-client Below are the errors I got:

    Error:
    In file included from _mysql.c:29:pymemcompat.h:10:20: error: Python.h: No such file or directory
    Fix: install the python-devel package before setup/install of MySQL-python

    Error: /usr/bin/ld: cannot find -lmysqlclient_r
    Fix: recompile mysql with –enable-thread-safe-client

    Otherwise, it went smoothly. Piece of cake.

14. Shack Dougall on 08 Feb 2008 at 10:29 pm #

    Great instructions! Thanks!

    I couldn’t get mod_python to work with Trac. It never gave me an error message, but just silently failed. Possibly, it was related to the fact that I have a WordPress blog at the root of my website which does a lot of url rewriting.

    Anyway, mod_wsgi is also simple to setup and worked immediately for me.

15. joel on 25 Feb 2008 at 8:31 pm #

    This is what I used.

    SetHandler mod_python
    PythonHandler trac.web.modpython_frontend
    PythonOption TracEnv /srv/trac
    PythonOption TracUriRoot /trac
    SetEnv PYTHON_EGG_CACHE /srv/trac/cache
    PythonDebug On

    The space in the PythonHandler line was causing me problems. I also needed to add the PYTHON_EGG_CACHE line.

16. Badoviatgat on 24 Mar 2008 at 4:11 am #

    I’d prefer reading in my native language, because my knowledge of your languange is no so well.

17. Richard on 29 Mar 2008 at 2:27 pm #

    I only got as far as “python setup.py build && python setup.py install”

    and got a shed load of errors, such as:

    _mysql.c:545: warning: statement with no effect
    _mysql.c:546: warning: implicit declaration of function ‘mysql_init’
    _mysql.c:546: error: ‘_mysql_ConnectionObject’ has no member named ‘connection’
    _mysql.c:546: warning: statement with no effect
    _mysql.c:549: warning: implicit declaration of function ‘mysql_options’
    _mysql.c:549: error: ‘_mysql_ConnectionObject’ has no member named ‘connection’
    _mysql.c:549: error: ‘MYSQL_OPT_CONNECT_TIMEOUT’ undeclared (first use in this function)
    _mysql.c:553: error: ‘_mysql_ConnectionObject’ has no member named ‘connection’
    _mysql.c:553: error: ‘MYSQL_OPT_COMPRESS’ undeclared (first use in this function)
    _mysql.c:554: error: ‘CLIENT_COMPRESS’ undeclared (first use in this function)
    _mysql.c:554: error: invalid operands to binary |
    _mysql.c:554: error: incompatible types in assignment
    _mysql.c:554: warning: statement with no effect
    _mysql.c:557: error: ‘_mysql_ConnectionObject’ has no member named ‘connection’
    _mysql.c:557: error: ‘MYSQL_OPT_NAMED_PIPE’ undeclared (first use in this function)
    _mysql.c:558: warning: comparison of distinct pointer types lacks a cast
    _mysql.c:559: error: ‘_mysql_ConnectionObject’ has no member named ‘connection’
    _mysql.c:559: error: ‘MYSQL_INIT_COMMAND’ undeclared (first use in this function)
    _mysql.c:560: warning: comparison of distinct pointer types lacks a cast
    _mysql.c:561: error: ‘_mysql_ConnectionObject’ has no member named ‘connection’
    _mysql.c:561: error: ‘MYSQL_READ_DEFAULT_FILE’ undeclared (first use in this function)

    etc. etc.

    any ideas or help would be much appreciated

18. Vu Huy Phuong on 03 Apr 2008 at 2:15 am #

    to Richard:
    I have had the same errors with you, I read the README file and found that I should install mysql-devel (and python-devel if neccesary) package before, then I tried and it’s solved. Try it yourself and let me know!

19. John on 15 Apr 2008 at 7:03 pm #

    for some reason even after I installed mod_python I get

    Invalid command ‘PythonHandler’, perhaps misspelled or defined by a module not included in the server configuration

    I checked in my /usr/local/apache/modules and mod_python.so isn’t there… so whether I do a yum install or manually compile mod_python it never gets installed in the modules directory…

    any suggestions??

20. John on 15 Apr 2008 at 7:25 pm #

    nevermind, for some reason ./configure –with-apxs=/usr/local/apache/bin/apxs before compiling made it work…

21. John on 15 Apr 2008 at 7:49 pm #

    well now I get another problem…
    using

    SetHandler mod_python
    PythonHandler trac.web.modpython_frontend
    PythonOption TracEnv $pathtoyourtracproject
    PythonOption TracUriRoot /trac/

    where $pathtoyourtracproject is replaced by my path, I get an 500 internal error on my server… any clue why?

22. Pieter on 16 May 2008 at 6:39 am #

    I’m having the same problem as John. I get a 500 internal error.

    The output of /var/log/httpd/error_log

    [Fri May 16 15:49:00 2008] [error] [client 10.10.3.18] PythonHandler trac.web.mod: ImportError: No module named mod

    [Fri May 16 15:49:04 2008] [error] [client 10.10.3.18] PythonHandler trac.web.mod: Traceback (most recent call last):

    [Fri May 16 15:49:04 2008] [error] [client 10.10.3.18] PythonHandler trac.web.mod: File “/usr/lib/python2.4/site-packages/mod_python/apache.py”, line 287, in HandlerDispatch\n log=debug)

    [Fri May 16 15:49:04 2008] [error] [client 10.10.3.18] PythonHandler trac.web.mod: File “/usr/lib/python2.4/site-packages/mod_python/apache.py”, line 461, in import_module\n f, p, d = imp.find_
    module(parts[i], path)

    [Fri May 16 15:49:04 2008] [error] [client 10.10.3.18] PythonHandler trac.web.mod: ImportError: No module named mod

23. Pieter on 16 May 2008 at 7:49 am #

    The problem I was having was the following:

    The Python egg cache directory is currently set to: /root/.python-eggs
    Perhaps your account does not have write access to this directory? You can change the cache directory by setting the PYTHON_EGG_CACHE environment variable to point to an accessible directory.

    So I made a directory under /usr/lib/trac/plugins-cache with the right permissions (777) so that the Apache user can write into it.

    I’ve added in my httpd.conf:

    SetEnv PYTHON_EGG_CACHE /usr/lib/trac/plugin-cache

    Restarted Apache and tadaaaa, it works!

    More info about Trac Plugins/Problems here: http://trac.edgewall.org/wiki/TracPlugins

24. Installing Trac on CentOS 5 « Compulsivo, Inc. on 16 May 2008 at 4:41 pm #

    […] (because it sucks and has been slain by Git). If you need SVN support, check out the posts by Nick or Daniel […]

25. Wei-Yin Chen on 18 May 2008 at 3:10 pm #

    If you have Dag repository set up, you may just do “yum install trac” and most of the tedious steps can be skipped.

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